Seiko Cal. 4440 - 487

The 4440-487 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4440 caliber with 35j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-76b973593710]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1989

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